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Thread: 2015 Passat tdi Coolant Temp Fault

  1. #1
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    2015 Passat tdi Coolant Temp Fault

    2015 Passat with MIL on checked Group 1 Fault Codes found this:

    4238 - Engine Coolant Temp Sensor on Radiator Outlet (G83)
    P2185 00 [175] - Signal too High

    Checked advanced measuring codes for coolant sensors found this:

    Code:
    IDE00025   Coolant temperature 59 C
      IDE00194   Coolant temperature at radiator output: specified value 90.0 C
      IDE01266-ENG57549   Coolant shut-off valve-Bits 0-7 3 
      IDE07724   Coolant temperature at engine outlet: calculated 59.7 C
      IDE07725   Coolant temp.sens.1 bank 1 at cylinder head: raw value 59.5 C
      IDE07726   Coolant temp.sens.1 bank 1 at cylinder head: uncnd. voltage 1906.0 mV
      IDE07727   Coolant temp. sensor 1 bank 1 at cylinder head: raw value -40.0 C
      IDE07728   Coolant temp. sensor 1 bank 1 at cylinder head: uncnd. voltage 4999.8 mV
    Replaced coolant temp. sensor at radiator outlet and it appears that fixed the issue. So far.

    I am was confused by the similar labeling of the IDE measuring codes. Is this correct?

    It appears by the actual temperature/voltage readings that IDE07727 and IDE07728 are for the sensor at the radiator outlet.

    Complete Autoscan:

    Code:
    Chassis Type: A3-VW41 (7N0)
    Scan: 01 02 03 08 09 15 16 17 19 1C 25 2E 42 44 46 4F 52 56 62 72
              75 77
    
    VIN: 1VWBV7A32FC095600   Mileage: 187170km-116302miles
    
    01-Engine -- Status: Malfunction 0010
    02-Auto Trans -- Status: Malfunction 0010
    03-ABS Brakes -- Status: Malfunction 0010
    04-Steering Angle -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    19-CAN Gateway -- Status: OK 0000
    1C-Position Sensing -- Status: OK 0000
    25-Immobilizer -- Status: OK 0000
    2E-Media Player 3 -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    4F-Centr. Electr. II -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    56-Radio -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    75-Telematics -- Status: OK 0000
    77-Telephone -- Status: OK 0000
     
    -------------------------------------------------------------------------------
    Address 01: Engine (J623-CVCA)       Labels:. 04L-907-309-V1.clb
       Part No SW: 04L 997 016 D    HW: 04L 907 309 K
       Component: R4 2.0l TDI   H20 9466  
       Revision: 8AH20---    
       Coding: 011D0012032410080000
       Shop #: WSC 03340 444 00000
       ASAM Dataset: EV_ECM20TDI01104L997016D 004002
       ROD: EV_ECM20TDI01104L997016D.rod
       VCID: 346694E39F0DD1EF4D-8060
    
    2 Faults Found:
    4238 - Engine Coolant Temp Sensor on Radiator Outlet (G83) 
              P2185 00 [175] - Signal too High
              MIL ON - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Mileage: 186517 km
                        Date: 2019.08.29
                        Time: 12:03:52
    
                        Engine speed: 1006.00 /min
                        Normed load value: 16.1 %
                        Vehicle speed: 0 km/h
                        Coolant temperature: 51 C
                        Intake air temperature: 48 C
                        Ambient air pressure: 980 mbar
                        Voltage terminal 30: 12.280 V
                        Unlearning counter according OBD: 40
                        Accelerator pedal travel: raw value: 0.00 %
                        Coolant temp. sensor 1 bank 1 at cylinder head: raw value: -40.0 C
                        Heat delivery temperature in cooling system: -273.1 C
                        Extern.temp.sens.1 bank 1: raw value: 26.0 C
                        Fuel consumption: 0.63 l/h
                        Fuel temp. sensor 1 bank 1: raw value: 48.0 C
                        Engine oil temperature: 47.7 C
    
    25147 - Control Circuit for Reductant Pump 1 
              P208B 00 [096] - Implausible Signal
              Intermittent - Not Confirmed - Tested Since Memory Clear
    
    Readiness: 1 1 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans        Labels: 02E-927-770.clb
       Part No SW: 02E 300 061 T    HW: 02E 927 770 AL
       Component: GSG DSG AG6     531 4518  
       Revision: 05653104    Serial number: 00001501250253
       Coding: 0000020
       Shop #: WSC 09003 957 00200
       VCID: 254079A7ECD7B867CA-8070
    
    1 Fault Found:
    28907 - No Communications with Cruise Control (Front) Distance Sensor 
                U0235 - 000 -  - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 0
                        Fault Frequency: 103
                        Reset counter: 37
                        Mileage: 168898 km
                        Time Indication: 0
                        Date: 2019.04.16
                        Time: 12:18:08
    
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
       Part No SW: 1K0 907 379 BS    HW: 1K0 907 379 BS
       Component: ESP MK60EC1   H46 0166  
       Revision: 00H46001    
       Coding: C54BC0F5492B00FFA31103E492190042A1100012
       Shop #: WSC 09003 957 00200
       VCID: 04060423872DA16FBD-8050
    
    1 Fault Found:
    02214 - Tire Pressure Warning 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 2
                        Fault Frequency: 4
                        Reset counter: 149
                        Mileage: 177406 km
                        Time Indication: 0
                        Date: 2019.06.06
                        Time: 08:49:31
    
                 Freeze Frame:
                        Count: 0
                        Count: 32768
                        Count: 4608
                        Count: 16401
                        Count: 51325
                        Count: 0
                        Count: 65277
                        Count: 0
    
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J301)       Labels:| 3C8-907-336.clb
       Part No SW: 561 907 426 J    HW: 561 907 426 J
       Component: AC Manuell    H02 0404  
       Revision: 00001K01    
       Coding: 0010001002
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_ACManuaElectGen2BHTC 001002
       ROD: EV_ACManuaElectGen2BHTC_VW36.rod
       VCID: 224A62BB35F94F5FAF-8076
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
       Part No SW: 5K0 937 085 AB    HW: 5K0 937 085 AB
       Component: BCM PQ35 B+   122 0174  
       Revision: BH122001    
       Coding: EF200E1B802B2AD4098800010600044800F1A08640801520648060000C70
       Shop #: WSC 05512 002 1048576
       VCID: 73E457FFD28396D794-8026
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags (J234)       Labels:| 5K0-959-655.clb
       Part No SW: 5C0 959 655 AB    HW: 5C0 959 655 AB
       Component: AirbagVW10    500 0975  
       Serial number: 003LZD06G7W4  
       Coding: 00004D53
       Shop #: WSC 34130 003 1048576
       ASAM Dataset: EV_AirbaVW10SMEVW360 001030
       ROD: EV_AirbaVW10SMEVW360.rod
       VCID: 72EA52FBA5999FDF9F-8026
    
       Seat occupied recognition: 
       Subsystem 1 - Part No SW: 5C6 959 339 B    HW: 5C6 959 339 B
       Component: BF-Gewichtss.  H10 0046 
       Serial number: 6940000Y150001BX2L0+
       Coding: 303044
    
       Crash sensor for side airbag: driver side: 
       Subsystem 2 - Part No SW: 5K0 959 354     HW: 5K0 959 354 
       Component: S.Sens.Fahr.V  H02 ---- 
       Serial number: 3572MSME68326A4EZZZ3
    
       Crash sensor for side airbag: front passenger side: 
       Subsystem 3 - Part No SW: 5K0 959 354     HW: 5K0 959 354 
       Component: S.Sens.Beif.V  H02 ---- 
       Serial number: 3582MSME38035C4EZZZ0
    
       Crash sensor for side airbag: rear: driver side: 
       Subsystem 4 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
       Component: S.Sens.Fahr.H  H02 ---- 
       Serial number: 3516KSME03506635ZZZH
    
       Crash sensor for side airbag: rear: passenger side: 
       Subsystem 5 - Part No SW: 5K0 959 351 A    HW: 5K0 959 351 A
       Component: S.Sens.Beif.H  H02 ---- 
       Serial number: 3526KSME2D056635ZZZU
    
       Crash sensor for front airbag: driver side: 
       Subsystem 6 - Part No SW: 5K0 959 659 A    HW: 5K0 959 659 A
       Component: F.Sens.Fahr  H02 ---- 
       Serial number: 3556LSME5F1E6634ZZZ5
    
       Crash sensor for front airbag: front passenger side: 
       Subsystem 7 - Part No SW: 5K0 959 659 A    HW: 5K0 959 659 A
       Component: F.Sens.Beif  H02 ---- 
       Serial number: 3566LSME7D0A6634ZZZ1
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
       Part No SW: 1K5 953 521 BM    HW: 5K0 953 569 AE
       Component: LENKS.MODUL   016 0162  
       Revision: FF010042    Serial number: 20150304101167
       Coding: 088A140000
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_SMLSNGVOLWSXS A01004
       ROD: EV_SMLSNGVOLWS.rod
       VCID: 79F865D7F8EFEC87DE-802C
    
       Multifunction steering wheel control module: 
       Subsystem 1 - Part No SW: 3C8 959 537 D    HW: 3C8 959 537 D  Labels: 3C8-959-537.CLB
       Component: E221__MFL-8LP  H07 0023 
       Serial number: 00000000000001044861
       Coding: E20000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 5K0-920-XXX-17.clb-SRI1
       Part No SW: 561 920 970 G    HW: 561 920 970 G
       Component: KOMBI         H05 0813  
       Serial number: 00000000000000
       Coding: 231E01
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04723
       ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
       VCID: 1E32564B01816BBF8B-804A
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:. 7N0-907-530-V2.clb
       Part No SW: 7N0 907 530 AR    HW: 7N0 907 530 AM
       Component: J533  Gateway H55 1653  
       Revision:   H55       Serial number: 30031503000942
       Coding: 461000
       Shop #: WSC 09003 957 00200
       VCID: 000E08339335BD4F99-8054
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 1C: Position Sensing
    Cannot be reached
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
       Part No SW: 5K0 953 234     HW: 5K0 953 234 
       Component: IMMO          H05 0813  
       Serial number:               
       Coding: 000000
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03710
       ROD: EV_Immo_UDS_VDD_RM09.rod
       VCID: 6ADA4A9B8D49571F27-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 2E: Media Player 3
    Cannot be reached
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver (J386)       Labels:| 3C0-959-70X-GEN4.clb
       Part No SW: 561 959 701     HW: 3C0 959 793 B
       Component: TUER-SG FT    002 0525  
       Revision: 13110009    Serial number: 0009492876
       Coding: 0404B5
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_TSGFPQ25BRFVW46X A04001
       ROD: EV_TSGFPQ25BRFVW46X.rod
       VCID: 5BB41F5F52133E97AC-800E
    
       Slave Driver: 
       Subsystem 1 - Part No SW: 561 959 811 B    HW: 561 959 811 B  Labels: 1K0-959-70X-GEN4.CLB
       Component: J388__TSG_HL  006 5470 
       Serial number: 14202630150417191230
       Coding: 800000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
       Part No: 1K0 909 144 R
       Component: EPS_ZFLS Kl. 215    3501  
       Revision: 00H22000    
       Shop #: WSC 01357 011 00200
       VCID: 3978A5D7706F2C879E-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
       Part No SW: 7N0 907 532     HW: 7N0 907 530 AM
       Component: EZE_2         H55 1653  
       Revision:   H55       Serial number: 30031503000942
       Coding: 01030108
       Shop #: WSC 09003 957 00200
       VCID: 6FEC5B8FBEABB23770-803A
    
       Subsystem 1 - Part No SW: 561 959 591 A    HW: 561 959 591 A
       Component: J245 P05 9BA3  H08 0005 
       Serial number: 53388786011433300690
       Coding: 181100
    
       Subsystem 2 - Part No SW: 561 919 204 B    HW: 561 919 204 B
       Component: Analoguhr  009 0005 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. (J387)       Labels:| 3C0-959-70X-GEN4.clb
       Part No SW: 561 959 702     HW: 3C0 959 792 B
       Component: TUER-SG BT    002 0525  
       Revision: 15110009    Serial number: 0009434365
       Coding: 0404B4
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_TSGBPQ25BRFVW46X A04001
       ROD: EV_TSGBPQ25BRFVW46X.rod
       VCID: 5CB61C43571D39AFA5-8008
    
       Slave Passenger: 
       Subsystem 1 - Part No SW: 561 959 812 B    HW: 561 959 812 B  Labels: 1K0-959-70X-GEN4.CLB
       Component: J389__TSG_HR  006 5470 
       Serial number: 14102631150417110200
       Coding: 800000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio (J503)       Labels:. 5M0-035-1xx-56.clb
       Part No SW: 1K0 035 188 F    HW: 1K0 035 188 F
       Component: Radio Prem-8  H08 0009  
       Revision: -----13S    Serial number: VWZ4Z7R3697294
       Coding: 0100044004000B
       Shop #: WSC 09003 957 00200
       VCID: 2B548F9F4A338E171C-807E
    
    1 Fault Found:
    02635 - Tuner Not Enabled/Activated 
                000 - -
                 Freeze Frame:
                        Fault Status: 01100000
                        Fault Priority: 7
                        Fault Frequency: 2
                        Reset counter: 169
                        Mileage: 167927 km
                        Time Indication: 0
                        Date: 2019.04.10
                        Time: 16:03:45
    
    
    -------------------------------------------------------------------------------
    Address 75: Telematics (J949)       Labels:| 12E-035-284.clb
       Part No SW: 561 035 285 A    HW: 561 035 285 A
       Component: OCULowUSA     020 0156  
       Serial number: 000003554140536
       Coding: 02140102C21632007F1606C00000
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_OCULow 002009
       ROD: EV_OCULow_002.rod
       VCID: 14263463FF4D31EF2D-8040
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 77: Telephone (J412)       Labels:| 5N0-035-729.clb
       Part No SW: 5N0 035 729 E    HW: 5N0 035 729 E
       Component: TELEFON       H07 0593  
       Revision: 1B001001    Serial number: 00007670129560
       Coding: 0A10030080010110
       Shop #: WSC 09003 957 00200
       ASAM Dataset: EV_UHVUMI 001007
       ROD: EV_UHVUMI.rod
       VCID: 326A92FB6519DFDF5F-8066
    
    No fault code found.
    Thank you!

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  3. #2
    Benevolent Dictator Uwe's Avatar
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    Wouldn't be the first time we've seen bugs that produce misleading results in a VW ECU. How long have you had TDIs? Remember how they used to number glow plugs improperly?

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  5. #3
    Verified VCDS User
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    Thank you for your reply!
    I have owned a tdi since 2004 - a 2001 jetta (which I still drive daily). I recently bought a 2013 Passat tdi and my daughter bought a 2015 Passat tdi. Also have a '97 Geo Tracker that I have a '98 Beetle tdi engine for, but that's been a long term project.

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